Apparatus for coating small articles with metal



(ModeL) 2 Sheets-Sheet 1. M. BRIGGS. Apparatus for Coating SmallArticles with Metal. No.- 230,857. Patented Aug. 10,1880.

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(ModeL) M. BRIGGS.

, 2 Sheets-Sheet 2.

Apparatus for Coating SmallArtioles with Metal. No. 23 Patented Aug.10,1880.

Witnesses I nventor:

UNITED STATES PATENT FFICEO MYRIOK BRIGGS, OF SOUTH ABINGTON,MASSACHUSETTS.

APPARATUS FOR COATING SMALL ARTICLES WlTH METAL.

SPECIFICATION forming part of Letters Patent No. 230,857, dated August10, 1880.

Application filed May 3, 1880.

To all whom it may concern Be it known that I, MYRIoK BRIGGS, of SouthAbington, in the State of Massachusetts, have invented an Improvement inApparatus for Goatin g Tacks and Similar Articles with Tin, Lead, orZinc, of which the following is a specification.

The invention consists in providing the immersion-pot with afunnel-shaped lining on one side, whereby the discharge of the articlescoated is greatly facilitated, owing both to the shape of the innerlining and to the retention of heat due to its presence.

It consists, further, in certain details of con struction whereby theimmersion-pot is conveniently handled.

In the drawings, Figure 1 is a side elevation of my improved apparatus.Fig. 2 is a sectional elevation on line 00 w of Fig. l, and Fig. 3 is alongitudinal sectional elevation.

A is a furnace built upon a bed, B. a is one of the grate-bars; l), thefire-door; c, the ash-pit door; 1), a hanging door, moved up and down ingrooves (not shown) by a windlass. (Not shown.) The door D is providedwith a perpendicular slot, (Z, as shown in Fig. 3, and also, thoughpartly in dotted lines, in Fig. 2.

U is a frame supporting the rails e e of a car-track. E is a truckcarrying the immersion-pot J. This pot is rectangular in shape and madeof boiler-iron, the ends being riveted within the quadrangular tube, asshown. It is hung upon two shafts, G G, rigidly secured to the ends atthe middle, and having bearings in the frame of the truck, as shown. Theshaft G is much longer than the shaft G, and has firmly keyed to it twoglands, H H.

P is a double clutch, consisting of a bandpnlley revolving freely uponshaft G, and having projections on either side to engage at times eitherwith gland H or gland H. The clutch P has agroove, 19, upon its hub,into which projects an arm, a, from the frame 0 to keep the clutch in aconstant position. The immersion-pot J has a sliding gate, m, and withinit there is rigidly secured to the side in which the gate is placed afunnel-shaped lining, t, whose smaller opening coincides with thepassage-way to which the gate belongs.

S is a double slide, down either face of which the tinned articles rideto the cold-water re-- ceivers W when discharged from the immersion-pot.

(Model) The operation is as follows: The immersionpot J having beencharged in the usual manner with the tin or other mixture and thearticles to be coated, and its opening having been closed by the gate m,the truck bearing the immersion-pot is run into the furnace, in whichthere is sufficient fire, and the door D lowered, the slot d in the doorpermitting it to pass down upon both sides of the shaft G. The clutch Pis all the time in motion, and

the gland H locking with one of its projecting faces when theimmersion-pot is in its proper place within the furnace, motion isthereby communicated to the shaft G, and the immersion-pot revolveduntil the articles are sufflciently coated. The truck is then drawn outof the furnace, the shaft G having a free longitudinal movement throughthe revolving clutch P to allow this to be done, and the gland Hbecoming disengaged from the clutch the revolution of the innnersion-potceases. The gate on is now removed and the truck run still farther back,when, the gland H becoming locked with the clutch, the immersion-pot isagain revolved and discharges a part of its load at each revolution whenthe face containing the aperture is at the bottom. The coated articlesfalling upon the slide S roll down by their own weight to one or theother of the reserr'oirs NV. The presence of the metallic funnel-shapedlining within the immersionpot keeps the pot hot and the coating mixturein such condition that the articles coated do not stick together for amuch longer time than described for revolving the pot either within orwithout the furnace, consisting of the shafts G and G, with theirbearings, clutch P, and glands H H.

MYRIOK BRIGGS.

Witnesses W. W. SWAN, CHAS. H. SWAN.

